AUTO TECH 1 PAST PAPER TEST 2026/2027 QUESTIONS
AND SOLUTIONS RATED A+
✔✔frame - ✔✔the strong metal structure that provides a mounting place for all other
parts
✔✔4 stroke cycle - ✔✔-piston has to go up & down= 1 stroke
-intake stroke= intake valves open and piston goes down & air fuel gets in
-compression= it goes up, the piston, and squeezes and the spark plugs creates a spark
plug
-power= after the spark plug, it creates power
-exhaust power= after the power, the valves open to the exhaust power (pipe) to the
engines back to get out of the car
✔✔body - ✔✔a steel, aluminum, fiberglass, plastic or composite skin forming the
outside of the vehicle
✔✔chassis - ✔✔often used when referring to a vehicles frame and everything mounted
to it except the body- tires, wheel, engine, transmission, axle assembly
✔✔unibody construction - ✔✔a sheet metal body panels welded together to form the
body and frame...fuel efficient, usually lighter
✔✔vehicle weight distribution - ✔✔the measurement of how much force is pushing
down on the front & rear tires of the vehicle (50% front, 50% rear)
✔✔engine - ✔✔provides the energy to move the vehicle and operate other vehicle
systems
✔✔fuel system - ✔✔must introduce the correct amount of fuel into the cylinders for
efficient combustion inside the engine
✔✔air fuel ratio - ✔✔(% of air/fuel) fuel system must alter with it and it changes in
engine operating conditions (temp., altitude, speed, load)
✔✔direct gasoline injection system - ✔✔spray gasoline right into the combustion
chambers above the pistons
✔✔ignition system - ✔✔needed on gasoline engines to ignite the air fuel mixture
(produces high voltage that jumps air gap at spark plug tip)
✔✔starting system - ✔✔has powerful electric starting motor which rotates the engine's
crankshaft until the engine "fires" and runs on its own power
-battery provides electricity for it
AND SOLUTIONS RATED A+
✔✔frame - ✔✔the strong metal structure that provides a mounting place for all other
parts
✔✔4 stroke cycle - ✔✔-piston has to go up & down= 1 stroke
-intake stroke= intake valves open and piston goes down & air fuel gets in
-compression= it goes up, the piston, and squeezes and the spark plugs creates a spark
plug
-power= after the spark plug, it creates power
-exhaust power= after the power, the valves open to the exhaust power (pipe) to the
engines back to get out of the car
✔✔body - ✔✔a steel, aluminum, fiberglass, plastic or composite skin forming the
outside of the vehicle
✔✔chassis - ✔✔often used when referring to a vehicles frame and everything mounted
to it except the body- tires, wheel, engine, transmission, axle assembly
✔✔unibody construction - ✔✔a sheet metal body panels welded together to form the
body and frame...fuel efficient, usually lighter
✔✔vehicle weight distribution - ✔✔the measurement of how much force is pushing
down on the front & rear tires of the vehicle (50% front, 50% rear)
✔✔engine - ✔✔provides the energy to move the vehicle and operate other vehicle
systems
✔✔fuel system - ✔✔must introduce the correct amount of fuel into the cylinders for
efficient combustion inside the engine
✔✔air fuel ratio - ✔✔(% of air/fuel) fuel system must alter with it and it changes in
engine operating conditions (temp., altitude, speed, load)
✔✔direct gasoline injection system - ✔✔spray gasoline right into the combustion
chambers above the pistons
✔✔ignition system - ✔✔needed on gasoline engines to ignite the air fuel mixture
(produces high voltage that jumps air gap at spark plug tip)
✔✔starting system - ✔✔has powerful electric starting motor which rotates the engine's
crankshaft until the engine "fires" and runs on its own power
-battery provides electricity for it
